DOZYANT Gas Lift Cylinder Replacement,Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) Universal Size Fits Most Executive Office Chairs, Highest End Class 4

These chair cylinders are nowhere near as easy to remove as some videos show. Usually they're wedged in there unbelievably tight, but there are ways to win the battle. I checked other online videos for removal techniques and soon afterwards, this part was a great replacement. It fit perfectly, drops right in, appears to be better built than the original and so far has held up very well despite my above average build. Definitely worth the price and a little effort! Highly recommended!

When the gas lift on my office chair started giving out, I was on the brink of buying a whole new chair. That’s when I stumbled upon the DOZYANT Gas Lift Cylinder, and I decided to give it a shot. This decision turned out to be a game changer! The installation process was incredibly easy, and it fit my executive chair like a glove, thanks to its universal size design. It's evident that this cylinder is built to last, supporting up to 450 lbs with a seamless and smooth operation, making it feel like I've got a brand new chair. The hydraulic pneumatic shock piston operates flawlessly, providing the perfect amount of lift and stability. What impressed me the most is how it has transformed my seating experience at work, ensuring comfort throughout my long hours at the desk. This product is a lifesaver for anyone looking to fix their office chair without breaking the bank. The DOZYANT Gas Lift Cylinder is a high-quality, durable solution that I would highly recommend to anyone facing similar chair woes. It’s truly a top-notch product and the highest end of its class!

Worked perfectly, was worried I needed to buy a new chair, this was def a economical way to preserve this office chair a little longer. Removal of the old ram is tough, but a hammer and a punch and some anger I was able to get it knocked out without too much pain. Installation was about as easy as it could get.

I had read many tips and watched many videos on removing the old gas cylinder and thought I was ready with my secret weapon...my 18 inch pipe wrench. Sadly it did not work in twisting out the cylinder. Had to remove bottom mechanism of chair to access the end of the cylinder to try to drive it out of the chair bottom apparatus. With a 5lb sledge and a huge screwdriver I attempted to drive the cylinder out with extreme force. Well I got my screwdriver wedged into the middle of the cylinder and it would not come out. Drove upwards on the screwdriver handle to get it out and promptly broke my handle off. Fixed later with gorilla glue so no worries. So anyway banged, grunted, and silently cursed until I remembered another trick I had not seen mentioned and that was a MAPP gas torch. Heated the connection where the cylinder was basically welded inside and re-hammered into the cylinder with a socket extension and out it popped. WOW. Finally. After letting it cool, I reattached the mechanism to the bottom of my chair and in slid the new cylinder and then on the legs. Promptly sat down in it and tried to raise the chair up. It did not work at all. Well removed it all again and saw a purple plastic cap that was over the white piece that was the actual gas cylinder control. I unscrewed that purple piece and reassembled it all one more time and it all worked great. Seems very strong and no leaks so far. When I lower it may be a little more of a drop than the old one and not as smooth but will try to get used to it. Overall giving it a good buy and hoping it last for years as not looking forward to removing the cylinder in the future again. Dropping to 4 stars as there were no instructions to remove the purple plastic cap and it cost me more time to disassemble and reassemble it.

Bought this for my home office chair when my last one developed a leak. Easy to replace the old one. New cylinder works VERY well with easy adjustments and strong--not sloppy-holds well. Saved alot of $$ by replacing the cylinder instead of the whole chair. Good quality.

Worked perfectly in my Quantum 9000 office chair. I unclipped the old canister from my old chair, and removed it from the seat, and then just used the canister (not the exterior black housing that comes with this) in my chair. It fits perfectly, and works without problems. Since I'm using the housing from my chair, rather than the black housing this comes with, everything looks identical to how it did before.